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#!/usr/bin/python2
#
#Copyright (c) 2003, 2004, 2005, 2006, 2007 Olivier Sessink
#All rights reserved.
#
#Redistribution and use in source and binary forms, with or without
#modification, are permitted provided that the following conditions 
#are met:
#  * Redistributions of source code must retain the above copyright 
#    notice, this list of conditions and the following disclaimer.
#  * Redistributions in binary form must reproduce the above 
#    copyright notice, this list of conditions and the following 
#    disclaimer in the documentation and/or other materials provided 
#    with the distribution.
#  * The names of its contributors may not be used to endorse or 
#    promote products derived from this software without specific 
#    prior written permission.
#
#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
#"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
#LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
#FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
#COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
#INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
#BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
#LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
#LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
#ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
#POSSIBILITY OF SUCH DAMAGE.
#

import shutil
import sys
import os.path
import os
import getopt
import string

INIPREFIX='/etc/jailkit'
LIBDIR='/usr/share/jailkit'
sys.path.append(LIBDIR)
import jk_lib

def startcopy(config, chroot, filestocopy, checklibs=1):
	jk_lib.copy_binaries_and_libs(chroot,filestocopy,config['force'] , config['verbose'], try_hardlink=config['hardlink'], retain_owner=config['retainowner'])
	jk_lib.gen_library_cache(chroot)

def usage():
	print "Usage: "+sys.argv[0]+" -j <jail> [OPTIONS] <files and directories>"
	print ""
	print "-h --help          : this help screen"
	print "-j, --jail         : the jail to copy to"
	print "-v, --verbose      : show what is being copied"
	print "-f, --force        : overwrite existing files"
	print "-k, --hardlink     : use hardlinks if possible"
	print "-o, --owner        : retain file ownership and group"
	print "\nNote: if no jail is specified, the first argument is\nconsidered to be the jail\n"

def testargs(jail, args):
	if (len(args) == 0 or jail == None):
		sys.stderr.write('ERROR: need at least a chroot directory and a file to copy\n\n')
		usage()
		sys.exit(2)
	if (not os.path.isdir(jail)):
		sys.stderr.write('ERROR: '+jail+' is not a directory\n')
		print ""
		usage()
		sys.exit(3)
	for file in args:
		if (not os.path.exists(file)):
			sys.stderr.write('ERROR: '+file+' does not exist\n\n')
			usage()
			sys.exit(4)

def main():
	if (os.getuid()!=0):
		print 'cannot run without root privileges'
		sys.exit(5)
	try:
		opts, args = getopt.getopt(sys.argv[1:], 'fh?vkoj:', ['help', 'verbose', 'force', 'hardlink', 'owner', 'jail'])
	except getopt.GetoptError:
		usage()
		sys.exit(1)
	config = {}
	config['verbose'] = 0
	config['force'] = 0
	config['hardlink'] = 0
	config['retainowner'] = 0
	jail = None
	for o, a in opts:
		if o in ("-h",'?', "--help"):
			usage()
			sys.exit()
		if o in ("-j", "--jail"):
			jail = a
		if o in ("-v", "--verbose"):
			config['verbose'] = 1
		if o in ("-f", "--force"):
			config['force'] = 1
		if o in ("-k", "--hardlink"):
			config['hardlink'] = 1
		if o in ("-o", "--owner"):
			config['retainowner'] = 1
	if (jail == None and len(args)>0 ):
		jail = args[0]
		args = args[1:]
	args = jk_lib.find_files_in_path(args)
	testargs(jail, args)
	if (jail[-1] != '/'): jail = jail+'/'
	if (jk_lib.chroot_is_safe(jail)!=1):
		sys.exit(6)
	startcopy(config, jail, args)

if __name__ == "__main__":
    main()